Rollei Heidosmat 150mm f/2.8 A cheap Aero Ektar Alternative?

I picked up this Rollei Heidosmat 150mm f/2.8 projection lens from Ebay. Most of my 4x5 lenses have their biggest f-stop at f5.6 or smaller so I quite excited to see if this projection lens could be a cheaper version of the Kodak Aero Ektar 7 inches which is usually paired with the Speed Graphic camera utilizing its focal plane shutter.

For my adaption, I 3D printed an adaptor for it and tested out the lens by shooting using Foma RC paper and Instax Wide using the ‪@lomographicsociety‬ Lomograflok back.

Adaptor design is modified from Configurable lensboard with thread (Linhof/Wista) at https://www.thingiverse.com/thing:474... using the configurable outer thread code

Final Adaptor Design here https://www.printables.com/model/1653...

Chapters
0:00 Introduction of the Rollei Heidosmat lens
0:54 Unboxing of the Rollei Heidosmat lens
1:50 Copal 3 Adaptor
6:02 Test Shoot
8:04 Processing
11:14 Test Shoot 2
13:10 Conclusion, is this an Aero Ektar alternative?

Affiliate links :
Ilford Multigrade paper developer : https://amzn.to/3fBoigM
Ilford Rapid Fixer : https://amzn.to/2SeHKI2
Ilford RC paper 5x7 : https://amzn.to/3oHMdPE
Air Shutter Release 20' : https://amzn.to/2RxvKS8
Shanghai film 4x5 : https://amzn.to/3c35QN0

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I have been doing film photography, darkroom printing since 2003. Since then, I have also been doing alternative processes such as albumen printing, kallitype printing, wet plate and dry plate photography. My favorite cameras are the Nikon FM2 and Nikon F2 and my favorite films are Fomapan 100, Kodak Ektar, Fujifilm Velvia, Rollei Superpan. with The various genres of photography I enjoy doing are landscape photography, portrait photography,